<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<style>
    div{
        width: 200px; 
        color: red;
    }

    #displaydiv{
        display: none;
    }
</style>
<body>
    <p>js深入浅出</p>
    <div id="typediv" onmousedown="mousedown_type()" onmousemove="mousemove()" onmouseout="mouseout()">
        <p>七种数据类型</p>
    </div>

    <div id="yinsdiv" onmousemove="mousemove_yinsdiv()" onmouseout="mouseout_yinsdiv()">
        <p>js隐式转换</p>
    </div>

    <div id="typeofdiv" onmousemove="mousemove_typeofdiv()" onmouseout="mouseout_typeofdiv()">
        <p>类型检测</p>
    </div>

    <div>
        <p onmousedown="onmousedown_yuns()">运算符</p>
        <div id="displaydiv">
            <img src="运算符1.png">
            <img src="运算符2.png">
        </div>
    </div>

    <div>
        <p onmousedown="mousedown_define()">Object.defineProperty</p>
    </div>

    <p id="trycatch"></p>
    <p id="keys"></p>
    <script>
        

        
    </script>
    <script src="JS3.js"></script>
</body>
</html>